Reports
Writeups published when the work is done and cleared for release. Subscribe via RSS.
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Threat teardown
godhive: A Novel Rust Crypto-Stealer and Miner Framework
Kinryū Labs analysed godhive, a novel and undocumented Rust offensive framework caught abusing an exposed Docker API on our honeypot network. It mines Monero, drains cryptocurrency wallets across major exchanges and more than eight blockchains, spreads as a worm, and hides behind a command channel built to survive takedown. We assess with high confidence that it is purpose-built crimeware, and that it was deployed by a single developer field-testing their own tool from a consumer mobile connection.
malware · cryptojacking · crypto-stealer · rust · docker · worm
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Threat teardown
Inside a Gaming DDoS-for-Hire Operation
Kinryū Labs assesses with high confidence that this is a commercial gaming DDoS-for-hire operation running on a shared botnet builder kit. The same Go codebase is compiled by different operators with their own C2 servers and attack loadouts; the fleet analysed here fronts a self-serve, account-gated for-hire API and a live bot inventory of roughly 28 to 32 devices, dispatching customer attack orders against gaming and voice infrastructure. Its raw-TCP command channel is unauthenticated while bot registration is gated behind a password-authenticated SSH channel.
malware · botnet · ddos · golang · iot · honeypot
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Threat teardown
A Cross-Platform Go DDoS Botnet-for-Hire
Kinryū Labs analysed bot.exe, the Windows build of a Go-compiled DDoS botnet distributed as an 11-binary, 13-architecture dropper suite and delivered through a multi-day Jenkins Script Console exploitation campaign. Reconnaissance of the staging host identified a live, authenticated DDoS-for-hire API, a Go SSH command channel, and a co-hosted Mirai-lineage family. We assess with high confidence that this is a commercial DDoS-for-hire operation.
malware · botnet · ddos · golang · iot · jenkins
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Threat teardown
Kworker: The Cryptominer That Brings Its Own Uninstaller
Kinryū Labs caught an 8220-lineage cryptojacker turn an open, password-less Redis port into a root shell in about five seconds. The dropper, a 636-line shell script called kworker, uninstalls Alibaba and Tencent cloud security agents with the vendors' own tools, spends 200 lines killing rival miners, backdoors SSH, hides an XMRig Monero miner behind fake ps, top and pstree, and tries to worm onward.
malware · cryptomining · redis · linux · honeypot · monero
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Coordinated disclosure native.org
An Open Kibana Exposed native.org's Trading Stack
During threat intelligence research, Kinryū Labs found an unauthenticated Kibana belonging to native.org that exposed its full trading-stack architecture and logged live API keys in plaintext. native.org has restricted access and rotated the keys.
coordinated-disclosure · kibana · elasticsearch · data-exposure · defi · cloud-misconfiguration
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Threat teardown CVE-2026-31431
Rootpacket: A Linux Cryptojacking Toolkit That Hides in the Kernel
Kinryū Labs analysed Rootpacket, a Linux cryptojacking toolkit that ships a kernel rootkit to fake CPU and memory usage, escalates to root through CVE-2026-31431 (an AF_ALG page-cache flaw that also escapes containers to the host), masquerades as an Intel driver, and disables the same exposed services rival miners use to get in.
malware · cryptomining · rootkit · linux · kernel · monero
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Threat teardown
Inside a RedTail Campaign: Self-Propagation Through Exposed Docker APIs
Kinryū Labs honeypots caught the RedTail cryptominer spreading through unauthenticated Docker Engine APIs and dropped SSH keys. This writeup documents a current, fully captured instance, with the loader, the competitor-removal script, the miner, and live indicators.
malware · cryptomining · redtail · docker · linux · honeypot